4 Your Health November 14, 2024 11:46 am Walking pneumonia cases increase over 300% in DC area, MedStar says Walking pneumonia cases in the D.C. area have increased 358% in October compared to this time last year, MedStar said. News4’s Juliana Valencia explains why. Local 3:16 How to deal with being a night owl 2:13 Public health expert reacts to RFK Jr. cabinet pick 1:37 Whooping cough cases on the rise 2:13 Why a public health pro fears RFK Jr. could increase DC health care inequality 2:27 How healthy are sugar alternatives?